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Finding the Fourth Proportional to 65,205.60, 98,017.20 and 60,583.20

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Solution

The fourth proportional to 65,205.60, 98,017.20 and 60,583.20 is: 91,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,205.60 : 98,017.20 = 60,583.20 : x
  2. Step 2: Convert to fraction form
    65,205.60/98,017.20 = 60,583.20/x
  3. Step 3: Cross multiply
    65,205.60x = 98,017.20 × 60,583.20
  4. Step 4: Simplify right side
    65,205.60x = 5,938,195,631.04
  5. Step 5: Solve for x
    x = 5,938,195,631.04/65,205.60
  6. Step 6: Final answer
    x = 91,068.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.